The Steinitz Principle

One of Steinitz's revolutionary ideas (for his time), was that a successful kingside attack required a solid centre as a precondition. As with most general rules this doesn't always hold, but it is a piece of advice that club players would do well to pay more attention to.
I'm guessing that this game from the first round of the GCT even in Croatia owes something to this idea, but I'm not actually sure how much. The early g5 thrust idea by Nepomniatchi has become much more common in recent top level games, although Anand then turned the tables by keeping his king in the centre, and launching his own kingisde attack instead. Fortunately for Black, White couldn't do much with the open h file, and in the end the weak central squares were occupied by Black, leading to victory.
While the classicist's of the 20th century may not have approved of play by either side, I'm sure Steinitz would have found this game quite logical from his point of view.

Anand,Viswanathan (2767) - Nepomniachtchi,Ian (2775) [C55]
Croatia GCT 2019 Zagreb CRO (1.5), 26.06.2019

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. c3 d6 6. Nbd2 g5 7. h3 Bg7 8. Bb3 O-O 9. Nf1 Ne7 10. h4 g4 11. N3h2 d5 12. f3 Ng6 13. fxg4 Nxh4 14. g3 Ng6 15. Qe2 a5 16. Bc2 d4 17. g5 hxg5 18. Bxg5 a4 19. c4 Qd6 20. Nd2 Ra6 21. Rb1 Nh7 22. Qh5 Nxg5 23. Qxg5 Qe7 24. Qxe7 Nxe7 25. Nhf3 f5 26. Bd1 Bd7 27. Nh4 Bh6 28. exf5 Nxf5 29. Ne4 Be3 30. Be2 Rh6 31. Rh2 Bc6 32. Rg2 Nd6 0-1